Temperatures and the growth and development of wheat: a review
Temperatures and the growth and development of wheat: a review
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DOI：
10.1016/s1161-0301(98)00047-1
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发表时间：
1999-01-01
影响因子：
5.2
通讯作者：
Gawith, M
中科院分区：
文献类型：
--
作者：
Porter, JR;Gawith, M
我们首先概述了气候变率和极端温度对小麦产量的影响，在极端事件对作物过程的气候影响研究的背景下。然后，我们回顾文献描述的小麦植物极端温度的反应。确定了小麦不同物候过程的基本温度阈值，并概述了温度对生长发育速率的影响。最后，我们评估了上述对未来气候影响研究的影响。我们的总结表明，对于许多研究的过程，基本平均温度的标准误差是多么的小和一致。基本温度在研究之间是保守的，在小麦中似乎是明确的。我们把小麦的致死极限、开花期的不育反应、春化的基本温度以及一些基础和最佳温度归入这一类。未来的重要问题涉及极端事件组合的影响和具体影响的建模，如高温对谷物凝固的影响。(C)1999 Elsevier Science B.V.保留所有权利。
We start by outlining the general effects of climatic variability and temperature extremes on wheat yields in the context of extreme event effects on crop processes for climatic impacts studies. We then review literature describing the responses of wheat plants to extreme temperatures. Cardinal temperature thresholds for different phenological processes in wheat are identified and we outline the effects of temperature on rates of growth and development. Finally, we assess the implications of the above for future climatic impact studies.Our summary shows how relatively small and consistent are the standard errors of the cardinal mean temperatures for many of the processes examined. Cardinal temperatures are conservative between studies and are seemingly well-defined in wheat. Into this category we put the lethal limits for wheat, the sterility response at anthesis, the cardinal temperatures for vernalization and some of the base and optimal temperatures. Important questions for the future involve the effects of combinations of extreme events and the modelling of specific effects such as the influence of high temperatures on grain set. (C) 1999 Elsevier Science B.V. All rights reserved.